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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42302 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(big2str_struct): Two fields added: hbase2, hbase2_numdigits.
(rb_big2str1): Initialize above fields.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42301 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42298 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42296 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(KARATSUBA_BIG2STR_DIGITS): Removed.
(big2str_numdigits_cache): New variable.
(power_cache_get_power): Merged with power_cache_get_power0.
This function returns maxpow_in_bdigit_dbl(base)**(2**power_level).
(rb_big2str1): use power_cache_get_power.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42295 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(big2str_orig): Ditto.
(big2str_karatsuba): Ditto.
(rb_big2str1): Follow the above changes.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42294 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(big2str_orig): Change len argument to size_t.
(big2str_karatsuba): Ditto.
(rb_big2str1): Follow the above changes.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42291 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(power_cache_get_power): Change n1 argument (number of digits) to
power_level which is just passed to power_cache_get_power0.
(big2str_karatsuba): Ditto.
(rb_big2str1): Calculate the initial power_level.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42285 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(power_cache_get_power0): Add rb_bug call for too bit i argument.
(power_cache_get_power): Simplified.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42274 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(big2str_orig): Use big2str_struct.
(big2str_karatsuba): Ditto.
(rb_big2str1): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42262 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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LOG2_KARATSUBA_DIGITS.
(KARATSUBA_BIG2STR_DIGITS): Renamed from KARATSUBA_DIGITS.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42240 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nx == 2 && ny == 2
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42218 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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to a static constant.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42210 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42209 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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internal.h to calculate required buffer size to pack integers.
(rb_absint_numwords): Ditto.
(rb_absint_singlebit_p): Ditto.
[ruby-core:42813] [Feature #6065]
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42208 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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[ruby-core:55578] [Feature #8553]
This is accepted by matz on DevelopersMeeting20130727Japan.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42204 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42140 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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and nx == 2 && ny == 2.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42139 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bary_mul_toom3): Use bary_mulsub_1xN.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42123 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(TOOM3_BALANCED): Ditto.
(bary_mul_balance_with_mulfunc): Use KARATSUBA_BALANCED and
TOOM3_BALANCED.
(rb_big_mul_balance): Relax a condition.
(rb_big_mul_karatsuba): Use KARATSUBA_BALANCED.
(rb_big_mul_toom3): Use TOOM3_BALANCED.
(bary_mul_karatsuba_branch): Use KARATSUBA_BALANCED.
(bary_mul_toom3_branch): Use TOOM3_BALANCED.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42122 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bigdivrem1): Use bary_add.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42119 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42097 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(rb_cstr_to_inum): Invoke bigsq instead of bigmul0.
(bigsq): Re-implemented.
(bigmul0): Invoke bigsq if two arguments are identical.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42096 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bary_mul_toom3_branch): Call bary_mul_toom3.
(rb_big_mul_toom3): Ditto.
(bigmul1_toom3): Removed.
(big_real_len): Ditto.
(big_split): Ditto.
(big_split3): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42095 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42084 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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outer loop.
(bigfixize): A condition simplified.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42044 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bary_pack): Use BDIGITS_ZERO.
(bary_unpack): Ditto.
(bary_mul_single): Ditto.
(bary_mul_normal): Ditto.
(bary_sq_fast): Ditto.
(bary_mul_balance_with_mulfunc): Ditto.
(bary_mul_precheck): Ditto.
(bary_mul_toom3_branch): Ditto.
(rb_cstr_to_inum): Ditto.
(big_shift3): Ditto.
(bigmul1_toom3): Ditto.
(bary_divmod): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42032 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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SIZEOF_BDIGITS is added.
(bary_mul_precheck): Reduce comparisons.
(bary_mul): Invoke bary_sq_fast or bary_mul1 if the bignum size is
small.
(bigfixize): Resize the argument bignum here.
(bignorm): Don't call bigtrunc after bigfixize.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42028 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(big_three): Removed.
(Init_Bignum): Don't initialize big_three.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42010 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42007 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42006 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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shift.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42004 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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squaring.
((bary_mul_toom3_branch): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@42001 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41988 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* bignum.c (rb_big2str1): Renamed from rb_big2str0.
(rb_big2str0): Deprecated wrapper for rb_big2str1.
(rb_big2str): Invoke rb_big2str1 instead of rb_big2str0.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41987 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41985 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41980 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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Based on patch by Juanito Fatas [Fixes GH-360]
https://github.com/ruby/ruby/pull/360
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41979 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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* bignum.c (big_shift2, rb_big_lshift, rb_big_rshift): cast explicitly
to suppress warnings.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41978 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(nlz32): Use __builtin_clz or __builtin_clzl if possible.
(nlz64): Use __builtin_clzl or __builtin_clzll if possible.
(nlz128): Use __builtin_clzll if possible.
* configure.in: Check __builtin_clz, __builtin_clzl and
__builtin_clzll.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41976 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(ones): Removed.
(next_pow2): Removed.
(floor_log2): Removed.
(ceil_log2): Removed.
* configure.in (__builtin_popcountl): Don't check.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41974 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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__builtin_bswap64.
* internal.h (swap32): Use the configure result for the condition to
use __builtin_bswap32.
(swap64): Use the configure result for the condition to use
__builtin_bswap64.
* bignum.c (ones): Use the configure result for the condition to use
__builtin_popcountl.
(bary_unpack_internal): Use appropriate types for swap argument.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41963 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bigsub_core): Removed.
(bigsub): Don't compare before subtraction. Just subtract and
get the two's complement if the subtraction causes a borrow.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41962 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(DIGSPERLL): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41961 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41960 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41959 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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bary_mul_normal if xl is 1.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41955 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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big_lshift and big_rshift are merged.
(big_shift2): New function.
(big_lshift): Use big_shift3.
(big_rshift): Ditto.
(check_shiftdown): Removed.
(rb_big_lshift): Use big_shift2 and big_shift3.
(rb_big_rshift): Ditto.
(big_lshift): Removed.
(big_rshift): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41942 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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(bary_small_rshift): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41940 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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declaration.
(bary_small_rshift): Ditto.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@41939 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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